99909740 has 48 divisors (see below), whose sum is σ = 240371712. Its totient is φ = 34170816.

The previous prime is 99909739. The next prime is 99909767. The reversal of 99909740 is 4790999.

It is a super-2 number, since 2×99909740² = 19963912293735200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90029 + ... + 91131.

It is an arithmetic number, because the mean of its divisors is an integer number (5007744).

Almost surely, 2^99909740 is an apocalyptic number.

It is an amenable number.

99909740 is an abundant number, since it is smaller than the sum of its proper divisors (140461972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99909740 is a wasteful number, since it uses less digits than its factorization.

99909740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 99909740 is about 9995.4859811817. The cubic root of 99909740 is about 464.0191913881.

The spelling of 99909740 in words is "ninety-nine million, nine hundred nine thousand, seven hundred forty".